Visual fitness of public vehicle drivers in southeast of Iran

ABSTRACT

Although visual impairment of drivers is a very important risk factor for car accident, a few published papers have explored this issue in Iran. This study aims to evaluate the visual fitness of public vehicle drivers in Kerman province, southeast of Iran. A total of 4,003 public vehicle drivers were examined by one ophthalmologist for visual fitness in Kerman province between January 2009 and June 2010. Data are presented as Mean +/- SD or percentage, and with 95% confidence intervals [CIs]. Pearson Chi-square and McNemmar tests along with crude odds ratio [OR] were used to compare vision deficit between groups. Almost 361 drivers [9.0%; 95% CI 8.1-9.9] had insufficient vision to drive public vehicles before the refractive errors [RE] correction and this number, was reduced to 68 drivers [1.7%; 95% CI 1.3-2.1] after the correction. A number of them including 200 drivers [5.0%; 95% CI 4.3-5.7] had insufficient vision to drive personal vehicles before the correction and this was reduced to 30 thereafter [0.8%; 95% CI 0.5-1.0]. We also found out that the vision status got worse with aging, and RE was the most prevalent cause of sight defects. It seems that visual fitness of public vehicle drivers is a point of real concerns which might somewhat explain the high rate of car accidents in Iran